Philo Judaeus Legatio Ad Gaium 151

[151] For there is no sacred precinct of such magnitude as that which is called the Grove of Augustus, and the temple erected in honour of the disembarkation of Caesar, which is raised to a great height, of great size, and of the most conspicuous beauty, opposite the best harbour; being such an one as is not to be seen in any other city, and full of offerings, in pictures, and statues; and decorated all around with silver and gold; being a very extensive space, ornamented in the most magnificent and sumptuous manner with porticoes, and libraries, and men’s chambers, and groves, and propylaea, and wide, open terraces, and court-yards in the open air, and with everything that could contribute to use or beauty; being a hope and beacon of safety to all who set sail, or who came into harbour.